Why are nematocysts important?
For the capture of food, in locomotion, and in attachment.
How do Hydra reproduce asexually?
Specialized cells of cnidarians that produce and contain the stinging nematocysts.
Outer tissue layer protecting the surface of an animal from its environment.
The gelatinous layer between the epidermal and gastrodermal layers of cnidarians.
Inner tissue layer protecting the surface of an animal from its environment.
The stinging capsules produced by the cnidocytes of cnidarians.
The sessile state in the life cycle of many cnidarians.
Free-swimming stage in the life cycle of many cnidarians.
Serves for attachment.
An elevation between the bases of the radially arranged tentacles.
Products of asexual reproduction.
Condition of an animal with both male and female sex organs borne in different individuals.
Condition of bearing both male and female sex organs in one individual.
A simple, ciliated, sausage-shaped larval form produced by many cnidarians.
A thin, shelflike membrane found in most hydromedusae.
Male or female sex organs on an individual.
A large group of colonial organisms.
Feeding individuals in a colonial hydrozoan.
Type of reproductive individual in colonial Hydrozoa.